Home / 19,820.16-27,331.40-13,849.64

Finding the Fourth Proportional to 19,820.16, 27,331.40 and 13,849.64

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Solution

The fourth proportional to 19,820.16, 27,331.40 and 13,849.64 is: 19,098.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,820.16 : 27,331.40 = 13,849.64 : x
  2. Step 2: Convert to fraction form
    19,820.16/27,331.40 = 13,849.64/x
  3. Step 3: Cross multiply
    19,820.16x = 27,331.40 × 13,849.64
  4. Step 4: Simplify right side
    19,820.16x = 378,530,050.70
  5. Step 5: Solve for x
    x = 378,530,050.70/19,820.16
  6. Step 6: Final answer
    x = 19,098.23

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.